Which of the following transformations will result in an image that maps onto itself?

A. Rotate 270 degrees counterclockwise about the origin, and the

reflect it across the x-axis.
B. Rotate 360 degrees about the origin.

C. Rotate 90 degrees counterclockwise about the origin, and then
rotate 180 degrees.

D. Reflect across the y-axis, and then reflect across the x-axis.

PLEASE HURRY!!!